Garfield County · Utah
Mammoth Cr Trout Stocking Schedule & Alerts
Feed freshness
Latest: June 23, 2026
Page data last checked or changed
- Fish recorded
- 4,048
- Stocking batches
- 4
- Stocking days
- 4
- Days since latest
- 33
Recorded pattern
How often has Mammoth Cr been stocked?
The indexed history contains 4 reported batches across 4 distinct stocking days, totaling 4,048 trout.
Distinct stocking dates were about 16 days apart on average across the indexed period.
The record spans through . Agency reporting can lag field work and may later be corrected.
Indexed totals by year
- 2026
- 4,048 fish · 4 batches
Species mix
Share of fish in this water's indexed trout records.
Fish per reported batch, oldest to newest (up to 12 batches).
Dates and quantities
Recent and historical stockings
| Date stocked | Species | Fish | Avg. length |
|---|---|---|---|
| Rainbow trout | 242 | 10.54 in | |
| Tiger trout | 500 | 10.19 in | |
| Rainbow trout | 260 | 10.12 in | |
| Brown trout | 3,046 | 3.28 in |
Nearest indexed stocking alternatives
Ordered by same or neighboring county, then by latest stocking. Utah DWR does not include coordinates in this feed, so this is not a mileage or drive-time estimate.
Antimony L Emw
54 fish in 1 reported batch; latest July 8, 2026.
Not enough history for a standalone page yet.
Little Antimony Emw
51 fish in 1 reported batch; latest July 8, 2026.
Not enough history for a standalone page yet.
Garkane Imp, Main Fk
1,300 fish in 3 reported batches; latest June 18, 2026.
Row L 7-Banana-Gt
703 fish in 2 reported batches; latest June 18, 2026.
Garkane East Fk
414 fish in 1 reported batch; latest June 18, 2026.
Not enough history for a standalone page yet.
Common questions
Mammoth Cr stocking FAQ
How often is Mammoth Cr stocked with trout?
Across the indexed period, distinct Mammoth Cr stocking dates were about 16 days apart on average. The record holds 4 reported batches across 4 distinct stocking days, totaling 4,048 fish.
When was Mammoth Cr last stocked?
Utah DWR last reported 242 Rainbow trout at Mammoth Cr on June 23, 2026. This reflects a completed stocking record, not a promised future schedule, and agency reporting can lag field work.
What trout species are stocked in Mammoth Cr?
The indexed records for Mammoth Cr include Brown trout, Rainbow trout and Tiger trout. The most-stocked is Brown trout at about 75% of stocked fish.
Can I get an alert when Mammoth Cr is stocked?
Yes. TroutNotify emails you when Utah DWR reports a new Mammoth Cr stocking. Add the water to your watchlist and you are notified as the feed updates.
Where does this Mammoth Cr stocking data come from?
Every figure is derived from the Utah Division of Wildlife Resources Fish Stocking Report, the official public source. You can verify each batch against the DWR report linked on this page.
Stocking alerts
Know when Mammoth Cr gets stocked next.
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Totals are calculated from TroutNotify's imported Utah DWR trout rows. They may change when the agency adds or corrects its report. Stocking data does not replace fishing regulations or access guidance.